Interested to Buy Any Domain ? << Click Here >> for more details...
What is difference between UNIQUE constraint and PRIMARY KEY
constraint ?
- 3 Answers
- 7370 Views
- I also Faced
- E-Mail Answers
Answer Posted / allin
The Primarykey Constraint= unique + Not Null constraints.
For the Unique the meaning it self it is telling unique
value. won't accept duplicate values.
Thanks & Regards,
RatnaRao
9833847339
| Is This Answer Correct ? | 9 Yes | 0 No |
Post New Answer View All Answers
How to use values from other tables in update statements using oracle?
What is the difference between sharding and partitioning?
I have some query regarding Report generation from Oracle Apps "PO module". I have to generate a report where table columns are as below: Vendor_name Invoice No PO Number Item_Quantity Value of Goods Date of Shipping Name_of_the_transport Date_of_receipt_issued. Now my questions is :from which table/column I can get the information of "Name_of_the_transport" column. Thanks in advance.
You have 4 instances running on the same UNIX box. How can you determine which shared memory and semaphores are associated with which instance?
How to select some rows from a table in oracle?
How do I know if oracle is installed on windows?
What is a Garbage Collection? and what is full recursive Garbage collection?
What are the ways tablespaces can be managed and how do they differ?
What is an Oracle Instance?
How do I find my oracle client driver version?
How to do paging with oracle?
WHAT IS ecc 6.0
How to start your 10g xe server?
What is a select query statement in oracle?
why should i declare foreign key constraint as self relation instead of binary relation in tables ?
